ShowAndTell is part of ElvisMeetings where each Elvis member doing research shows or tells the group what they've been doing since the last meeting in terms of research and progress, and what they plan to do over the next short while. Elvis members can also ask for help with stuff. Bringing pictures or screenshots of applications is a good thing to do. If an Elvis member has done good they tend to get applause such as getting a paper accepted at a conference or receiving a scholarship.
Wikipedia definition of Show and TellShowAndTell replaces the CircleOfGuilt